Kassidy is a distinctive boys' name in United States, ranking #13593 in 2008 with 5 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has decreased by 28.6%. In 2008, approximately 1 in every 407,989 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.